Ovicula biradiata, a new genus of Compositae from Big Bend National Park in Trans-Pecos Texas
Bookreader Item Preview
Share or Embed This Item
texts
Ovicula biradiata, a new genus of Compositae from Big Bend National Park in Trans-Pecos Texas
- by
- Manley, Debra L.; Lichter Marck, Isaac H.; Peralta, Keily; Castro Castro, Arturo; Wogan, Kelsey A.; Whiting, Carolyn V.; Powell, A. Michael
- Publication date
- 2025-2-18
- Usage
- https://creativecommons.org/share-your-work/public-domain/cc0/
- Topics
- Asteraceae, biodiversity, calciphile, Chihuahuan Desert, Helenieae, taxonomy, Tetraneurinae, Asteraceae, biodiversidad, calcifilo, Desierto Chihuahuense, Helenieae, taxonomía, Tetraneurinae
- Publisher
- Pensoft Publishers
- Collection
- biodiversity
- Contributor
- Pensoft Publishers
- Language
- English
- Rights
- https://biodiversitylibrary.org/permissions
- Rights-holder
- Copyright held by individual article author(s).
- Volume
- 252
- Item Size
- 28.9M
- Abstract
- Here, we describe and illustrate a new monospecific genus of Compositae, Ovicula biradiatagen. et sp. nov., from the Chihuahuan Desert in Big Bend National Park, Texas. Ovicula biradiata is a very locally abundant, yet range-limited, spring annual herb found in coarse calcareous alluvium. Based on its pistillate ray florets, pappus of hyaline, aristate scales, tomentose foliage and slightly saucer-shaped to flat, epaleate receptacle, we determine that the new species has affinities with the Helenioid subtribe Tetraneurinae in the Heliantheae alliance. Molecular phylogenetic analysis of nrDNA (ITS) sequence data supports the phylogenetic position of Ovicula biradiata within the subtribe Tetranuerinae, where it is resolved as the sister lineage to the genus Psilostrophe. We also present detailed habitat information, high-resolution images captured using a dissecting microscope and scanning electron micrographs of vegetative and reproductive characters of Ovicula biradiata and related taxa, as well as provide an updated key to the genera of Tetraneurinae. Finally, we discuss the significance of this remarkable discovery for community science, biodiversity exploration and plant conservation in the Chihuahuan Desert.
- Addeddate
- 2025-05-02 23:25:05
- Bhl_virtual_titleid
- 210913
- Bhl_virtual_volume
- v.252 (2025)
- Call number
- 10_3897_phytokeys_252_137624
- Call-number
- 10_3897_phytokeys_252_137624
- Foldoutcount
- 0
- Genre
- article
- Identifier
- oviculabiradiat252manl
- Identifier-ark
- ark:/13960/s2qjf4w6kbk
- Identifier-bib
- 10_3897_phytokeys_252_137624
- Identifier-doi
- 10.3897/phytokeys.252.137624
- Ocr
- tesseract 5.3.0-6-g76ae
- Ocr_detected_lang
- en
- Ocr_detected_lang_conf
- 1.0000
- Ocr_detected_script
- Latin
- Ocr_detected_script_conf
- 1.0000
- Ocr_module_version
- 0.0.21
- Ocr_parameters
- -l eng
- Page_number_confidence
- 97
- Page_number_module_version
- 1.0.5
- Page_range
- 141-162
- Pages
- 22
- Pdf_degraded
- invalid-jp2-headers
- Pdf_module_version
- 0.0.25
- Possible copyright status
- In copyright. Digitized with the permission of the rights holder.
- Ppi
- 300
- Source
- PhytoKeys 252
- Year
- 2025
comment
Reviews
65 Views
DOWNLOAD OPTIONS
For users with print-disabilities
IN COLLECTIONS
Biodiversity Heritage LibraryUploaded by Smithsonian Libraries and Archives on
Open Library